package com.atguigu.springcloud.service;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.concurrent.TimeUnit;

/**
 * @author admin
 * @title: PaymentService
 * @projectName cloud2021
 * @description: TODO
 * @date 2021/11/9 13:09
 */
@Service
public class PaymentService {
    public String paymentInfo_OK(Integer id){
        return "线程池："+Thread.currentThread().getName() + " paymentInfo_ok,id:  "+id+"\t"+"O(∩_∩)O哈哈~";
    }
    @HystrixCommand(fallbackMethod = "paymentInfo_TimeOutHandler",commandProperties = {
            @HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds",value = "5000")
    })
    public String paymentInfo_TimeOut(Integer id){
//        int age = 10 / 0;
        //暂停一会线程
        try { TimeUnit.SECONDS.sleep(3); } catch (InterruptedException e) { e.printStackTrace(); }
        return "线程池："+Thread.currentThread().getName() + " paymentInfo_TimeOut,id:  "+id+"\t"+"O(∩_∩)O哈哈~"+" 耗时3秒钟 ";
    }
    public String paymentInfo_TimeOutHandler(Integer id){
        return "线程池："+Thread.currentThread().getName() + " 系统繁忙，请稍后再试,id:  "+id+"\t"+"(╥╯^╰╥)";
    }
    //===================服务熔断===================
    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback",commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled",value = "true"),//是否开启断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold",value = "10"),//请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds",value = "10000"),//时间窗口期
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage",value = "60")//失败率达到多少后跳闸
    })
    public String paymentCircuitBreaker(@PathVariable("id") Integer id){

        if(id<0){
            throw new RuntimeException("*******id 不能负数");
        }
        String serialNumber = IdUtil.simpleUUID();

        return Thread.currentThread().getName() + "\t" + "调用成功，流水号：" + serialNumber;
    }

    public String paymentCircuitBreaker_fallback(@PathVariable("id") Integer id){
        return "id 不能负数，请稍后再试，→_→ id: "+id;
    }

























}
